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September 2018 1 25 Report
Tentukan hp dengan melengkapkan kuadrat
1) x^2+4x+1=0
2) x^2-2x-3=0
3) 2x^2-3x-5=0
4) 3x^2+4x-7=0
tentukan hp dengan rumus a.b.c
5) x^2-7x-18=0
6) 5x^2-x-4=0
7) 6x^2+17x+7=0
tolong jawab ya siapa yang jago matematika :)
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